The current snowpack pattern is uncommon and requires special attention and caution!
Amount of new snow and blown snow.
In the mountains, the last snow episode saw a significant amount of new snow. Wetter snow fell below about 1800 m, while lower down it snowed partly and rained partly. More dangerous are places where southerly winds have built up large snow drifts. In these places, we can trigger snowdrifts with a light load in particular. In shaded areas, there is a weak layer deep in the snowpack which can be a danger, especially on the axial sides. Gliding avalanches are possible.
Snowpack
dp.1: deep persistent weak layer dp.4: cold following warm / warm following cold
The last two-day snow episode saw 70-100 cm of New fallen snow in the High alpine regions. Below about 1800 m, the snow is moist and well bonded throughout the snowpack. At higher altitudes, the snow is drier and less adhered. South winds have built up new large drifts on the leeward sides of the ridges. There is a weak layer deep below the surface in the old snow cover, which can be a problem in the high alpine regions on the axial sides.
Tendency
On Sunday, there will be more clear weather in the mountains, with a relatively high zero isotherm at around 1600 m. The danger of avalanches will increase transiently, wet snow avalanches are possible at altitudes below 1900 m. Avalanches from steep cliffs and on steep grassy slopes are also a danger.
Danger level
1800m
Avalanche Problem
New snow
1800m
Wind slab
1800m
Persistent weak layer
1800m
New snow
1800m
The current snowpack pattern is uncommon and requires special attention and caution!
Amount of new snow and blown snow.
In the mountains, the last snow episode saw a significant amount of new snow. Wetter snow fell below about 1800 m, while lower down it snowed partly and rained partly. More dangerous are places where southerly winds have built up large snow drifts. In these places, we can trigger snowdrifts with a light load in particular. In shaded areas, there is a weak layer deep in the snowpack which can be a danger, especially on the axial sides. Gliding avalanches are possible.
Snowpack
dp.1: deep persistent weak layer dp.4: cold following warm / warm following cold
Around 50 cm of new fallen snow fell in the high alpine regions during the last two-day snow episode. Below about 1800 m, the snow is moist and well bonded throughout the snowpack. At higher altitudes, the snow is drier and less adhered. South winds have built up new large drifts on the leeward sides of the ridges. There is a weak layer deep below the surface in the Old snow cover, which can be a problem in the High alpine regions on the axial sides.
Tendency
On Sunday, there will be more clear weather in the mountains, with a relatively high zero isotherm at around 1600 m. The danger of avalanches will increase transiently, wet snow avalanches are possible at altitudes below 1900 m. Avalanches from steep cliffs and on steep grassy slopes are also a danger.
Danger level
1500m
Avalanche Problem
New snow
1500m
Wind slab
1500m
Wet snow
1500m
Increased amount of new snow in the highest parts of the mid-mountains, snowdrift accumulations
More new fallen snow and snowdrift accumulations in the highest parts of the Central Mountains
In the mountains, a significant amount of new snow has fallen over the last two days above an altitude of around 1500 m. Lower down, it has snowed partly (wetter snow) and rained partly. Winds from the south and south-east have built up snow drifts on the leeward sides, which can be a danger.
Snowpack
The old snow cover, which was mostly sparse, received 50-60 cm of new fallen snow above an altitude of around 1500 m, and more locally, especially in the south of the country. The snow is moist throughout the snowpack and is already fairly well bonded to each other. Winds from the south and south-east have built up on the leeward sides of the ridges.
Tendency
On Sunday, there will be more clear weather in the mountains, with a relatively high zero isotherm at around 1600 m. The avalanche danger will increase slightly at times, with the possibility of wet snow avalanches.
